If applying Gelcoat into a fibreglass (GRP) mould you must always add 2% catalyst, this will prevent the styrene present attacking the waxed surface which ensures the release of the part. We specialise in fibreglass,Carbon Fibre, resins, gelcoats, topcoats, epoxy resins, acrylics, upholstery, clothing and all related accessories for marine, automotive, and DIY projects.
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